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Assignee Name : CHINA NATIONAL OFFSHORE OIL CORPORATION
Total Assignments: 25
Assignment: 1
Reel/Frame:009494/0347   Pages: 2
Recorded: 10/02/1998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
CHEN, XINPING
Exec Dt:
07/30/1998
Assignee
1
CHINA NATIONAL OFFSHORE OIL CORPORATION
JINGXIN BUILDING
P.O. BOX 4705
DONGSANHUAN BEI ROAD, BEIJING, CHINA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6091669
NONE
09077138
Correspondence name and address
ALSTON & BIRD LLP
RAYMOND O. LINKER, JR.
P.O. DRAWER 34009
CHARLOTTE, NC 28234
Assignment: 2
Reel/Frame:024473/0924   Pages: 6
Recorded: 06/02/2010
Attorney Dkt #:AFD110900634-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GUO, YONGFENG
Exec Dt:
04/23/2010
2
JI, SHAOJUN
Exec Dt:
04/23/2010
3
TANG, CHANGQUAN
Exec Dt:
04/23/2010
Assignees
1
CHINA NATIONAL OFFSHORE OIL CORPORATION
BOX 4705, NO. 25, CHAO YANGMEN NORTH STREET
DONGCHENG BEIJING, CHINA 100010
2
CHINA OILFIELD SERVICES LIMITED
NO. 18, OFFSHORE OIL AVENUE, YANJIAO DEVELOPMENTS ZONE
SANHE, HEBEI, CHINA 065201
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8899333
US20100243262
12745843
Correspondence name and address
LING WU
1107 BETTSTRAIL WAY
POTOMAC, MD 20854
Assignment: 3
Reel/Frame:029414/0840   Pages: 3
Recorded: 12/05/2012
Attorney Dkt #:JEE12304PCTUS
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
XIE, BIN
Exec Dt:
11/26/2012
2
XIE, WENHUI
Exec Dt:
11/26/2012
3
ZENG, HENGYI
Exec Dt:
11/26/2012
4
ZHANG, WEI
Exec Dt:
11/26/2012
5
WANG, JUNRONG
Exec Dt:
11/26/2012
6
JIANG, ZHE
Exec Dt:
11/26/2012
Assignees
1
CHINA NATIONAL OFFSHORE OIL CORPORATION
NO. 25, CHAOYANGMENBEI DAJIE
DONGCHENG DISTRICT
BEIJING, CHINA
2
CHINA NATIONAL OFFSHORE OIL CORPORATION RESEARCH INSTITUTE
NO. 6, DONGZHIMENWAI XIAOJIE
DONGCHENG DISTRICT
BEIJING, CHINA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8733266
US20130092069
13702302
Correspondence name and address
ALLEMAN HALL MCCOY RUSSELL & TUTTLE LLP
806 SW BROADWAY
SUITE 600
PORTLAND, OR 97205-3335
Assignment: 4
Reel/Frame:031497/0503   Pages: 6
Recorded: 10/29/2013
Attorney Dkt #:AFD-51747
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SUN, YONGTAO
Exec Dt:
10/18/2013
2
MA, ZENGHUA
Exec Dt:
10/17/2013
3
LIU, HUAJUN
Exec Dt:
10/17/2013
4
WANG, TONG
Exec Dt:
10/17/2013
5
LIN, TAO
Exec Dt:
10/17/2013
6
LIU, HAITAO
Exec Dt:
10/17/2013
7
WANG, SHAOHUA
Exec Dt:
10/17/2013
8
SUN, YUBAO
Exec Dt:
10/17/2013
Assignees
1
CHINA NATIONAL OFFSHORE OIL CORPORATION
BOX 4705, NO. 25, CHAO YANGMEN NORTH STREET, DONGCHENG
BEIJING, CHINA 100010
2
CHINA OILFIELD SERVICES LIMITED
NO. 18, OFFSHORE OIL AVENUE, YANJIAO DEVELOPMENTS ZONE, SANHE
HEBEI, CHINA 065201
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9404189
US20150069301
14065533
Correspondence name and address
PEARNE & GORDON LLP
1801 EAST 9TH STREET
SUITE 1200
CLEVELAND, OH 44114-3108
Assignment: 5
Reel/Frame:032034/0843   Pages: 5
Recorded: 01/24/2014
Attorney Dkt #:25515-0017
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SUN, YONGTAO
Exec Dt:
12/25/2013
2
YU, GUIMIN
Exec Dt:
12/25/2013
3
LIU, HAITAO
Exec Dt:
12/25/2013
4
JIANG, JIE
Exec Dt:
12/25/2013
5
LIN, TAO
Exec Dt:
12/25/2013
6
MA, ZENGHUA
Exec Dt:
12/25/2013
7
SUN, YUBAO
Exec Dt:
12/25/2013
8
LIU, HUAJUN
Exec Dt:
12/25/2013
Assignees
1
CHINA NATIONAL OFFSHORE OIL CORPORATION
CHAO YANGMEN NORTH STREET
BOX 4705, NO. 25, DONGCHENG
BEIJING, CHINA 100010
2
CHINA OILFIELD SERVICES LIMITED
NO. 18, OFFSHORE OIL AVENUE
YANJIAO DEVELOPMENTS ZONE, SANHE
HEBEI, CHINA 065201
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20150136400
14162830
Correspondence name and address
SUTHERLAND ASBILL & BRENNAN LLP
999 PEACHTREE STREET, N.E.
SUITE 2300
ATLANTA, GA 30309
Assignment: 6
Reel/Frame:034949/0058   Pages: 6
Recorded: 02/12/2015
Attorney Dkt #:JEE12304PCTUSCIP
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
XIE, BIN
Exec Dt:
05/30/2014
2
JIANG, ZHE
Exec Dt:
05/30/2014
3
XIE, WENHUI
Exec Dt:
05/30/2014
4
WANG, JUNRONG
Exec Dt:
05/30/2014
Assignees
1
CHINA NATIONAL OFFSHORE OIL CORPORATION
NO. 25, CHAOYANGMENBEI DAJIE
DONGCHENG DISTRICT
BEIJING, CHINA
2
CHINA NATIONAL OFFSHORE OIL CORPORATION RESEARCH INSTITUTE
NO. 6, DONGSHIMENWAI XIAOJIE
DONCHENG DISTRICT
BEIJING, CHINA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9032896
US20140241811
14271327
Correspondence name and address
ALLEMAN HALL MCCOY RUSSELL & TUTTLE, LLP
806 S.W. BROADWAY, SUITE 600
PORTLAND, OR 97205
Assignment: 7
Reel/Frame:035785/0489   Pages: 9
Recorded: 06/04/2015
Attorney Dkt #:US1500547
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
QIN, XIAOFEI
Exec Dt:
05/29/2015
2
FENG, YONGREN
Exec Dt:
05/29/2015
3
SONG, WANGUANG
Exec Dt:
05/29/2015
4
CHU, XIAODONG
Exec Dt:
05/29/2015
5
WANG, LEI
Exec Dt:
05/29/2015
Assignees
1
CHINA NATIONAL OFFSHORE OIL CORPORATION
NO. 25, CHAO YANGMEN NORTH STREET
BEIJING, CHINA 100010
2
CHINA OILFIELD SERVICES LIMITED
P.O. BOX 232, TONGZHOU DISTRICT,
BEIJING, CHINA 101149
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9982816
US20150316183
14649343
Correspondence name and address
LING WU
P.O. BOX 1747
ROCKVILLE, MD 20849
Assignment: 8
Reel/Frame:036444/0287   Pages: 9
Recorded: 08/28/2015
Attorney Dkt #:US1500574
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
FENG, YONGREN
Exec Dt:
07/28/2015
2
ZHOU, MINGGAO
Exec Dt:
07/28/2015
3
HAO, GUIQING
Exec Dt:
07/28/2015
4
YU, ZHIJIE
Exec Dt:
07/28/2015
5
HAO, ZHONGTIAN
Exec Dt:
07/28/2015
Assignees
1
CHINA NATIONAL OFFSHORE OIL CORPORATION
NO. 25, CHAO YANGMEN NORTH STREET
BEIJING, CHINA 100010
2
CHINA OILFIELD SERVICES LIMITED
NO. 18, OFFSHORE OIL AVENUE, YANJIAO DEVELOPMENTS ZONE
SANHE, HEBEI, CHINA 065201
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10208736
US20160097377
14770827
Correspondence name and address
LING WU
P.O. BOX 1747
ROCKVILLE, MD 20849
Assignment: 9
Reel/Frame:036454/0591   Pages: 9
Recorded: 08/31/2015
Attorney Dkt #:US1500573
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
FENG, YONGREN
Exec Dt:
07/28/2015
2
ZHOU, MINGGAO
Exec Dt:
07/28/2015
3
ZHOU, YANMIN
Exec Dt:
07/28/2015
4
LU, TAO
Exec Dt:
07/28/2015
5
YU, QIANG
Exec Dt:
07/28/2015
Assignees
1
CHINA NATIONAL OFFSHORE OIL CORPORATION
NO. 25, CHAO YANGMEN NORTH STREET
BEIJING, CHINA 100010
2
CHINA OILFIELD SERVICES LIMITED
NO. 18, OFFSHORE OIL AVENUE
SANHE, HEBEI, CHINA 065201
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9988899
US20160108727
14771210
Correspondence name and address
LING WU
P.O. BOX 1747
ROCKVILLE, MD 20849
Assignment: 10
Reel/Frame:036941/0425   Pages: 11
Recorded: 11/02/2015
Attorney Dkt #:US1500586
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
FENG, YONGREN
Exec Dt:
09/25/2015
2
BAO, ZHONGLI
Exec Dt:
09/25/2015
3
YU, QIANG
Exec Dt:
09/25/2015
4
HAO, GUIQING
Exec Dt:
09/25/2015
5
SONG, WANGUANG
Exec Dt:
09/25/2015
6
LI, ZICHAO
Exec Dt:
09/25/2015
7
ZHOU, YANMIN
Exec Dt:
09/25/2015
Assignees
1
CHINA NATIONAL OFFSHORE OIL CORPORATION
NO. 25, CHAOYANGMEN NORTH STREET
DONGCHENG DISTRICT, BEIJING, CHINA 100010
2
CHINA OILFIELD SERVICES LIMITED
NO. 18, OFFSHORE OIL AVENUE, YANJIAO DEVELOPMENTS ZONE,
SANHE, LANGFANG, CHINA 065201
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10180064
US20160362977
14888454
Correspondence name and address
LING WU
P.O. BOX 1747
ROCKVILLE, MD 20849
Assignment: 11
Reel/Frame:038187/0832   Pages: 6
Recorded: 04/04/2016
Attorney Dkt #:COTEC_INC
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WANG, JIN
Exec Dt:
03/25/2016
2
LUO, YONG
Exec Dt:
03/25/2016
3
LI, ZHIGANG
Exec Dt:
03/25/2016
4
ZHANG, YANFANG
Exec Dt:
03/25/2016
Assignees
1
CHINA NATIONAL OFFSHORE OIL CORPORATION
NO. 25 CHAOYANGMENBEI DAJIE
DONGCHENG DISTRICT
BEIJING, CHINA 100010
2
OFFSHORE OIL ENGINEERING CO., LTD
NO. 199 HAIBIN 15 ROAD
TIANJIN PORT FREE TRADE ZONE
TIANJIN, CHINA
3
COTEC, INC.
738 HIGHWAY 6 SOUTH
SUITE 901
HOUSTON, TEXAS 77079
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9327805
US20150041142
13960724
Correspondence name and address
THEODORE LAPUS
5800 RANCHESTER DR
STE 200
HOUSTON, TX 77036
Assignment: 12
Reel/Frame:039017/0939   Pages: 4
Recorded: 06/27/2016
Attorney Dkt #:AFD0336PUSA
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
FENG, YONGREN
Exec Dt:
06/22/2016
2
ZOU, JIBIN
Exec Dt:
06/22/2016
3
LI, JIAN
Exec Dt:
06/22/2016
Assignees
1
CHINA NATIONAL OFFSHORE OIL CORPORATION
NO. 25, CHAO YANGMEN NORTH STREET
DONGCHENG DISTRICT
BEIJING, CHINA 100010
2
CHINA OILFIELD SERVICES LIMITED
NO. 18, OFFSHORE OIL AVENUE
YANJIAO DEVELOPMENTS ZONE
SANHE, HEBEI, CHINA 065201
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10381899
US20170214291
15193425
Correspondence name and address
BROOKS KUSHMAN P.C.
1000 TOWN CENTER
TWENTY-SECOND FLOOR
SOUTHFIELD, MI 48075
Assignment: 13
Reel/Frame:043677/0993   Pages: 5
Recorded: 09/25/2017
Attorney Dkt #:007556.00188
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
FENG, YONGREN
Exec Dt:
08/10/2017
2
LIU, TIEMIN
Exec Dt:
08/10/2017
3
TIAN, ZHIBIN
Exec Dt:
08/10/2017
4
LIU, LIPING
Exec Dt:
08/10/2017
5
CHU, XIAODONG
Exec Dt:
08/10/2017
6
WEI, ZANQING
Exec Dt:
08/10/2017
7
WU, XINGFANG
Exec Dt:
08/10/2017
8
HAO, GUIQING
Exec Dt:
08/10/2017
Assignees
1
CHINA NATIONAL OFFSHORE OIL CORPORATION
NO. 25, CHAOYANGMEN NORTH STREET
DONGCHENG DISTRICT
BEIJING, CHINA 100010
2
CHINA OILFIELD SERVICES LIMITED
NO. 18, OFFSHORE OIL AVENUE
YANJIAO DEVELOPMENTS ZONE
HEBEI, CHINA 065201
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10236667
US20180323589
15561101
Correspondence name and address
BANNER & WITCOFF, LTD.
1100 13TH ST. NW
STE 1200
WASHINGTON, DC 20005
Assignment: 14
Reel/Frame:045818/0345   Pages: 5
Recorded: 04/03/2018
Attorney Dkt #:GBDF003-PKG
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WANG, FACHENG
Exec Dt:
03/19/2018
2
GAO, SHUANG
Exec Dt:
03/16/2018
3
TANG, KE
Exec Dt:
03/16/2018
4
LI, ZHIGANG
Exec Dt:
03/19/2018
5
ZHANG, YIGONG
Exec Dt:
03/19/2018
6
LUO, YONG
Exec Dt:
03/20/2018
7
WANG, JIN
Exec Dt:
03/20/2018
8
WANG, JUN
Exec Dt:
03/16/2018
9
LIU, WEIWEI
Exec Dt:
03/16/2018
10
ZHU, XIAOHUAN
Exec Dt:
03/19/2018
11
LI, YANG
Exec Dt:
03/16/2018
12
LI, JIANNAN
Exec Dt:
03/19/2018
13
MENG, XIANGWEI
Exec Dt:
03/19/2018
Assignees
1
CHINA NATIONAL OFFSHORE OIL CORPORATION
NO.25,CHAOYANGMENBEI DAJIE, DONGCHENG DISTRICT BEIJING CHINA 100010
BEIJING, CHINA 100010
2
OFFSHORE OIL ENGINEERING CO., LTD.
NO. 199 HAIBIN 15 ROAD, TIANJIN PORT, FREE TRADE ZONE, TIANJIN, CHINA 120116
TIANJIN, CHINA 120116
3
COTEC,INC
FLOOR 5 KAIKANG MANSION, SANQU, ANZHENXILI, CHAOYANG DISTRICT,BEIJING CHINA 100029
BEIJING, CHINA 100029
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10295083
US20190072211
15765491
Correspondence name and address
GOKALP BAYRAMOGLU
2520 ST.ROSE PARKWAY, SUITE 309
HENDERSON, NV 89074
Assignment: 15
Reel/Frame:051618/0983   Pages: 4
Recorded: 01/15/2020
Attorney Dkt #:C6351-014-TRACK
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, JIAN
Exec Dt:
01/03/2020
2
CHEN, WENJUAN
Exec Dt:
01/03/2020
3
KANG, XIAODONG
Exec Dt:
01/03/2020
4
YANG, GUANG
Exec Dt:
01/03/2020
5
ZHU, YUEJUN
Exec Dt:
01/03/2020
6
WANG, XUDONG
Exec Dt:
01/03/2020
7
TANG, ENGAO
Exec Dt:
01/03/2020
Assignees
1
CHINA NATIONAL OFFSHORE OIL CORPORATION
CHAOYANGMEN NORTH STREET NO. 25, DONGCHENG DISTRICT
BEIJING, CHINA 100010
2
CNOOC RESEARCH INSTITUTE CO., LTD.
TAIYANGGONG NANJIE NO. 6, CHAOYANG DISTRICT
BEIJING, CHINA 100028
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10941333
US20200199442
16743828
Correspondence name and address
HAUPTMAN HAM, LLP
2318 MILL ROAD
SUITE 1400
ALEXANDRIA, VA 22314
Assignment: 16
Reel/Frame:052595/0421   Pages: 14
Recorded: 05/07/2020
Attorney Dkt #:US2000946
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
FENG, YONGREN
Exec Dt:
04/10/2020
2
ZOU, JIBIN
Exec Dt:
04/10/2020
3
LIU, TIEMIN
Exec Dt:
04/10/2020
4
WU, XINGFANG
Exec Dt:
04/10/2020
5
CHU, XIAODONG
Exec Dt:
04/10/2020
6
TIAN, ZHIBIN
Exec Dt:
04/10/2020
7
ZHANG, GUOQIANG
Exec Dt:
04/10/2020
8
HAO, ZHONGTIAN
Exec Dt:
04/10/2020
9
LI, GUANGSHUAI
Exec Dt:
04/10/2020
10
WU, YIMING
Exec Dt:
04/10/2020
Assignees
1
CHINA NATIONAL OFFSHORE OIL CORPORATION
NO.25, CHAOYANGMENBEI DAJIE, DONGCHENG DISTRICT
BEIJING, CHINA 100010
2
CHINA OILFIELD SERVICES LIMITED
NO. 1581 HAICHUAN ROAD, TANGGU MARINE SCIENCE AND TECHNOLOGY PARK, TIANJIN BINHAI HIGH-TECH ZONE
TIANJIN, CHINA 300459
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11028658
US20200291735
16760034
Correspondence name and address
LING WU
11618 SORREL RUN NW
GIG HARBOR, WA 98332
Assignment: 17
Reel/Frame:054950/0895   Pages: 3
Recorded: 01/19/2021
Attorney Dkt #:C6351-014-TRACK
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
WANG, XIUJUN
Exec Dt:
01/08/2021
Assignees
1
CHINA NATIONAL OFFSHORE OIL CORPORATION
CHAOYANGMEN NORTH STREET NO. 25
DONGCHENG DISTRICT
BEIJING, CHINA 100010
2
CNOOC RESEARCH INSTITUTE CO., LTD.
TAIYANGGONG NANJIE NO. 6
CHAOYANG DISTRICT
BEIJING, CHINA 100028
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10941333
US20200199442
16743828
Correspondence name and address
HAUPTMAN HAM, LLP
2318 MILL ROAD, SUITE 1400
ALEXANDRIA, VA 22314
Assignment: 18
Reel/Frame:055333/0692   Pages: 6
Recorded: 02/18/2021
Attorney Dkt #:007556.00228
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TIAN, ZHIBIN
Exec Dt:
02/07/2021
2
HUANG, LIN
Exec Dt:
02/07/2021
3
WEI, ZANQING
Exec Dt:
02/07/2021
4
GUO, SHUSHENG
Exec Dt:
02/07/2021
5
FENG, YONGREN
Exec Dt:
02/07/2021
6
WU, XINGFANG
Exec Dt:
02/07/2021
7
LIU, TIEMIN
Exec Dt:
02/07/2021
8
JIANG, YONG
Exec Dt:
02/07/2021
9
GAO, BIN
Exec Dt:
02/07/2021
10
SUN, PENG
Exec Dt:
02/07/2021
11
ZONG, SHIWEI
Exec Dt:
02/07/2021
12
ZHANG, JIANYONG
Exec Dt:
02/07/2021
13
ZHANG, AIJUN
Exec Dt:
02/07/2021
Assignees
1
CHINA NATIONAL OFFSHORE OIL CORPORATION
NO. 25, CHAOYANGMENBEI DAJIE
DONGCHENG DISTRICT
BEIJING, CHINA 100010
2
CHINA OILFIELD SERVICES LIMITED
NO. 1581 HAICHUAN ROAD, TANGGU MARINE SCIENCE AND TECHNOLOGY PARK
TIANJIN, CHINA 300459
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11739603
US20210285849
17178479
Correspondence name and address
BANNER & WITCOFF, LTD.
1100 13TH ST. NW
STE 1200
WASHINGTON, DC 20005
Assignment: 19
Reel/Frame:058248/0413   Pages: 6
Recorded: 11/30/2021
Attorney Dkt #:007556.00231
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LU, TAO
Exec Dt:
06/10/2021
2
FENG, YONGREN
Exec Dt:
06/10/2021
3
XU, CHANGGUI
Exec Dt:
06/10/2021
4
TIAN, ZHIBIN
Exec Dt:
06/10/2021
5
QIN, XIAOFEI
Exec Dt:
06/10/2021
6
ZHOU, MINGGAO
Exec Dt:
06/10/2021
7
CHU, XIAODONG
Exec Dt:
06/10/2021
8
LIU, TIEMIN
Exec Dt:
06/10/2021
9
XUE, YONGZENG
Exec Dt:
06/10/2021
10
WEI, ZANQING
Exec Dt:
06/10/2021
11
HUANG, LIN
Exec Dt:
06/10/2021
Assignees
1
CHINA OILFIELD SERVICES LIMITED
NO. 1581 HAICHUAN RD.
TANGGU MARINE SCIENCE AND TECHNOLOGY PARK
TIANJIN, CHINA 300459
2
CHINA NATIONAL OFFSHORE OIL CORPORATION
NO. 25, CHAOYANGMENBEI DAJIE
BEIJING, CHINA 100010
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11905829
US20220316290
17420108
Correspondence name and address
BANNER & WITCOFF, LTD.
71 SOUTH WACKER DRIVE
SUITE 3600
CHICAGO, IL 60606
Assignment: 20
Reel/Frame:057279/0733   Pages: 5
Recorded: 08/25/2021
Attorney Dkt #:AFD0461PUSA
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZUO, YOUXIANG
Exec Dt:
08/10/2021
2
FENG, YONGREN
Exec Dt:
08/10/2021
3
LU, TAO
Exec Dt:
08/10/2021
4
KONG, SUN
Exec Dt:
08/10/2021
5
SHEN, YANG
Exec Dt:
08/10/2021
6
QIN, XIAOFEI
Exec Dt:
08/10/2021
7
CHU, XIAODONG
Exec Dt:
08/10/2021
8
CHEN, YONGCHAO
Exec Dt:
08/11/2021
9
WU, XINGFANG
Exec Dt:
08/13/2021
10
HUANG, LIN
Exec Dt:
08/13/2021
Assignees
1
CHINA OILFIELD SERVICES LIMITED
NO. 1581 HAICHUAN ROAD, TANGGU MARINE SCIENCE AND TECHNOLOGY PARK, TIANJIN BINHAI HIGH-TECH ZONE
TIANJIN, CHINA 300459
2
CHINA NATIONAL OFFSHORE OIL CORPORATION
NO. 25, CHAOYANGMENBEI DAJIE, DONGCHENG DISTRICT
BEIJING, CHINA 100010
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20220155275
17433519
Correspondence name and address
BROOKS KUSHMAN P.C.
1000 TOWN CENTER, TWENTY-SECOND FLOOR
SOUTHFIELD, MI 48075
Assignment: 21
Reel/Frame:058016/0414   Pages: 4
Recorded: 11/04/2021
Attorney Dkt #:AFD0466PUSA
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, JIAWEI
Exec Dt:
10/19/2021
2
SAI, FANG
Exec Dt:
10/19/2021
3
XUE, ZHIBO
Exec Dt:
10/19/2021
4
WANG, GUANGWEI
Exec Dt:
10/19/2021
5
CHENG, YU
Exec Dt:
10/19/2021
6
CHEN, XIANGXIN
Exec Dt:
10/19/2021
7
CHEN, JINGZHI
Exec Dt:
10/19/2021
Assignees
1
CHINA OILFIELD SERVICES LIMITED
NO. 1581 HAICHUAN ROAD, TANGGU MARINE SCIENCE AND TECHNOLOGY PARK, TIANJIN BINHAI HIGH-TECH ZONE
TIANJIN, CHINA 300459
2
CHINA NATIONAL OFFSHORE OIL CORPORATION
NO. 25, CHAOYANGMENBEI DAJIE, DONGCHENG DISTRICT
BEIJING, CHINA 100010
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11714026
US20220299399
17608768
Correspondence name and address
BROOKS KUSHMAN P.C.
1000 TOWN CENTER, TWENTY-SECOND FLOOR
SOUTHFIELD, MI 48075
Assignment: 22
Reel/Frame:058796/0130   Pages: 5
Recorded: 01/27/2022
Attorney Dkt #:AFD0469PUSA
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TIAN, ZHIBIN
Exec Dt:
01/21/2022
2
FENG, YONGREN
Exec Dt:
01/21/2022
3
LU, TAO
Exec Dt:
01/21/2022
4
HUANG, LIN
Exec Dt:
01/21/2022
5
LIU, TIEMIN
Exec Dt:
01/21/2022
6
WEI, ZANQING
Exec Dt:
01/21/2022
7
JIANG, YONG
Exec Dt:
01/21/2022
8
DU, XIAOGIANG
Exec Dt:
01/21/2022
9
LIU, LIPING
Exec Dt:
01/21/2022
10
CHU, XIAODONG
Exec Dt:
01/21/2022
Assignees
1
CHINA OILFIELD SERVICES LIMITED
NO. 1581 HAICHUAN ROAD, TANGGU MARINE SCIENCE AND TECHNOLOGY PARK, TIANJIN BINHAI HIGH-TECH ZONE
TIANJIN, CHINA 300459
2
CHINA NATIONAL OFFSHORE OIL CORPORATION
NO. 25, CHAOYANGMENBEI DAJIE, DONGCHENG DISTRICT
BEIJING, CHINA 100010
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20220260094
17630653
Correspondence name and address
BROOKS KUSHMAN P.C.
1000 TOWN CENTER, TWENTY-SECOND FLOOR
SOUTHFIELD, MI 48075
Assignment: 23
Reel/Frame:059474/0278   Pages: 7
Recorded: 03/22/2022
Attorney Dkt #:AFD0469PUSA
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE SPELLING OF THE 8TH INVENTOR'S FIRST NAME PREVIOUSLY RECORDED AT REEL: 058796 FRAME: 0130. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT.
Assignors
1
TIAN, ZHIBIN
Exec Dt:
01/21/2022
2
FENG, YONGREN
Exec Dt:
01/21/2022
3
LU, TAO
Exec Dt:
01/21/2022
4
HUANG, LIN
Exec Dt:
01/21/2022
5
LIU, TIEMIN
Exec Dt:
01/21/2022
6
WEI, ZANQING
Exec Dt:
01/21/2022
7
JIANG, YONG
Exec Dt:
01/21/2022
8
DU, XIAOQIANG
Exec Dt:
01/21/2022
9
LIU, LIPING
Exec Dt:
01/21/2022
10
CHU, XIAODONG
Exec Dt:
01/21/2022
Assignees
1
CHINA OILFIELD SERVICES LIMITED
NO. 1581 HAICHUAN ROAD, TANGGU MARINE SCIENCE AND TECHNOLOGY PARK
TIANJIN BINHAI HIGH-TECH ZONE
TIANJIN, CHINA 300459
2
CHINA NATIONAL OFFSHORE OIL CORPORATION
NO. 25, CHAOYANGMENBEI DAJIE, DONGCHENG DISTRICT
BEIJING, CHINA 100010
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20220260094
17630653
Correspondence name and address
BROOKS KUSHMAN P.C.
1000 TOWN CENTER
22ND FLOOR
SOUTHFIELD, MI 48033
Assignment: 24
Reel/Frame:059986/0884   Pages: 5
Recorded: 05/12/2022
Attorney Dkt #:007556.00236\US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TIAN, ZHIBIN
Exec Dt:
05/07/2022
2
LU, TAO
Exec Dt:
05/07/2022
3
HUANG, LIN
Exec Dt:
05/07/2022
4
WEI, ZANQING
Exec Dt:
05/07/2022
5
LIU, TIEMIN
Exec Dt:
05/07/2022
6
FENG, YONGREN
Exec Dt:
05/07/2022
7
CHU, XIAODONG
Exec Dt:
05/07/2022
8
JIANG, YONG
Exec Dt:
05/07/2022
Assignees
1
CHINA OILFIELD SERVICES LIMITED
NO. 1581 HAICHUAN RD., TANGGU MARINE SCIENCE
AND TECHNOLOGY PARK, TIANJIN BINHAI HIGH-TECH ZONE
TIANJIN, CHINA 300459
2
CHINA NATIONAL OFFSHORE OIL CORPORATION
NO. 25, CHAOYANGMENBEI DAJIE
DONGCHENG DISTRICT
BEIJING, CHINA 100010
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20220397491
17776125
Correspondence name and address
BANNER WITCOFF
71 SOUTH WACKER DRIVE
SUITE 3600
CHICAGO, IL 60606
Assignment: 25
Reel/Frame:061780/0312   Pages: 4
Recorded: 11/15/2022
Attorney Dkt #:AFD0477PUSA
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LI, JIE
Exec Dt:
10/19/2022
2
LIU, XIEN
Exec Dt:
10/19/2022
3
SUN, ZHIFENG
Exec Dt:
10/19/2022
4
QIU, AO
Exec Dt:
10/19/2022
5
ZHANG, YONG
Exec Dt:
10/19/2022
6
PENG, KAIXUAN
Exec Dt:
10/19/2022
Assignees
1
CHINA NATIONAL OFFSHORE OIL CORPORATION
NO. 25, CHAOYANGMENBEI DAJIE, DONGCHENG DISTRICT
BEIJING, CHINA 100010
2
CHINA OILFIELD SERVICES LIMITED
NO. 1581 HAICHUAN ROAD, TANGGU MARINE SCIENCE AND TECHNOLOGY PARK, TIANJIN BINHAI HIGH-TECH ZONE
TIANJIN, CHINA 300459
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230194373
17925379
Correspondence name and address
BROOKS KUSHMAN P.C
1000 TOWN CENTER, TWENTY-SECOND FLOOR
SOUTHFIELD, MI 48075

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